EP0762638A3 - Transmitting apparatus and method of adjusting gain of signal to be transmitted, and receiving apparatus and method of adjusting gain of received signal - Google Patents

Transmitting apparatus and method of adjusting gain of signal to be transmitted, and receiving apparatus and method of adjusting gain of received signal Download PDF

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Publication number
EP0762638A3
EP0762638A3 EP96306293A EP96306293A EP0762638A3 EP 0762638 A3 EP0762638 A3 EP 0762638A3 EP 96306293 A EP96306293 A EP 96306293A EP 96306293 A EP96306293 A EP 96306293A EP 0762638 A3 EP0762638 A3 EP 0762638A3
Authority
EP
European Patent Office
Prior art keywords
signal
adjusting gain
transmitted
transmitting apparatus
power consumption
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP96306293A
Other languages
German (de)
French (fr)
Other versions
EP0762638A2 (en
Inventor
Atsushi c/o Sony Corporation Yoshizawa
Tomoya c/o Sony Corporation Yamaura
Norio C/O Sony Corporation Shimo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of EP0762638A2 publication Critical patent/EP0762638A2/en
Publication of EP0762638A3 publication Critical patent/EP0762638A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H03F2203/7236—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by putting into parallel or not, by choosing between amplifiers by (a ) switch(es)
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H03F2203/7239—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by putting into parallel or not, by choosing between amplifiers and shunting lines by one or more switch(es)

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)

Abstract

A transmitting apparatus which can suppress unnecessary power consumption. Optimal signal line is selected from a plurality of signal lines (53 - 56) having different gains from each other by signal amplifying means to perform gain adjustment on a signal to be transmitted, which is supplied to an input terminal (58), so as to optimize power consumption of each signal amplifying means in accordance with a gain value, and to halt the operation of the signal amplifying means on a signal line which is not selected. Therefore, unnecessary power consumption can be suppressed.
EP96306293A 1995-08-31 1996-08-30 Transmitting apparatus and method of adjusting gain of signal to be transmitted, and receiving apparatus and method of adjusting gain of received signal Withdrawn EP0762638A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP24869895 1995-08-31
JP248697/95 1995-08-31
JP24869795 1995-08-31
JP248698/95 1995-08-31

Publications (2)

Publication Number Publication Date
EP0762638A2 EP0762638A2 (en) 1997-03-12
EP0762638A3 true EP0762638A3 (en) 1998-11-18

Family

ID=26538907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96306293A Withdrawn EP0762638A3 (en) 1995-08-31 1996-08-30 Transmitting apparatus and method of adjusting gain of signal to be transmitted, and receiving apparatus and method of adjusting gain of received signal

Country Status (4)

Country Link
US (2) US5862461A (en)
EP (1) EP0762638A3 (en)
KR (1) KR100400970B1 (en)
CN (2) CN100391109C (en)

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KR20020001167A (en) * 2000-06-26 2002-01-09 서평원 Apparatus for power controlling in portable terminal
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US6701138B2 (en) * 2001-06-11 2004-03-02 Rf Micro Devices, Inc. Power amplifier control
US6522196B1 (en) * 2001-08-20 2003-02-18 Harris Corporation System and method for improving input return loss in RF amplifiers
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US6724252B2 (en) 2002-02-21 2004-04-20 Rf Micro Devices, Inc. Switched gain amplifier circuit
US7039377B2 (en) * 2002-06-14 2006-05-02 Skyworks Solutions, Inc. Switchable gain amplifier
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US20050041746A1 (en) * 2003-08-04 2005-02-24 Lowell Rosen Software-defined wideband holographic communications apparatus and methods
US7177370B2 (en) * 2003-12-17 2007-02-13 Triquint Semiconductor, Inc. Method and architecture for dual-mode linear and saturated power amplifier operation
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US11431312B2 (en) 2004-08-10 2022-08-30 Bongiovi Acoustics Llc System and method for digital signal processing
US8284955B2 (en) 2006-02-07 2012-10-09 Bongiovi Acoustics Llc System and method for digital signal processing
US10158337B2 (en) 2004-08-10 2018-12-18 Bongiovi Acoustics Llc System and method for digital signal processing
US10848118B2 (en) 2004-08-10 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
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US10848867B2 (en) 2006-02-07 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
US11202161B2 (en) 2006-02-07 2021-12-14 Bongiovi Acoustics Llc System, method, and apparatus for generating and digitally processing a head related audio transfer function
US10701505B2 (en) 2006-02-07 2020-06-30 Bongiovi Acoustics Llc. System, method, and apparatus for generating and digitally processing a head related audio transfer function
US10069471B2 (en) 2006-02-07 2018-09-04 Bongiovi Acoustics Llc System and method for digital signal processing
SG141259A1 (en) 2006-09-12 2008-04-28 Oki Techno Ct Singapore Pte Apparatus and method for receiving digital video signals
KR100849972B1 (en) * 2007-01-25 2008-08-01 삼성전자주식회사 RF filter, digital broadcast receiving tuner and RF signal processing device using the RF filter device
US20080248765A1 (en) * 2007-04-04 2008-10-09 Micrel, Inc. Superheterodyne Receiver with Switchable Local Oscillator Frequency and Reconfigurable IF Filter Characteristics
US9008593B2 (en) * 2010-09-30 2015-04-14 Broadcom Corporation Method and system for 60 GHz distributed communication
US9002300B2 (en) * 2010-09-30 2015-04-07 Broadcom Corporation Method and system for time division duplexing (TDD) in a 60 GHZ distributed communication system
US8977219B2 (en) * 2010-09-30 2015-03-10 Broadcom Corporation Method and system for mitigating leakage of a 60 GHz transmitted signal back into an RF input of a 60 GHz device
US8913951B2 (en) * 2007-09-30 2014-12-16 Broadcom Corporation Method and system for 60 GHz distributed communication utilizing a mesh network of repeaters
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JPWO2012098754A1 (en) * 2011-01-19 2014-06-09 三菱電機株式会社 Output mode switching amplifier
JP5763485B2 (en) 2011-09-16 2015-08-12 ルネサスエレクトロニクス株式会社 Antenna switch and communication device
CN104113382B (en) * 2013-04-22 2016-08-03 瑞昱半导体股份有限公司 Wireless transmitting system and determine the method for preset gain of wireless transmitting system
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US9264004B2 (en) * 2013-06-12 2016-02-16 Bongiovi Acoustics Llc System and method for narrow bandwidth digital signal processing
US9906858B2 (en) 2013-10-22 2018-02-27 Bongiovi Acoustics Llc System and method for digital signal processing
CN103701420B (en) * 2013-11-27 2016-07-06 广州润芯信息技术有限公司 A kind of transmitter gain distribution method and circuit
US10639000B2 (en) 2014-04-16 2020-05-05 Bongiovi Acoustics Llc Device for wide-band auscultation
US10820883B2 (en) 2014-04-16 2020-11-03 Bongiovi Acoustics Llc Noise reduction assembly for auscultation of a body
US9621994B1 (en) 2015-11-16 2017-04-11 Bongiovi Acoustics Llc Surface acoustic transducer
CN106330213A (en) * 2016-09-18 2017-01-11 深圳铂睿智恒科技有限公司 Radio frequency device enhancing sensitivity
KR20200143707A (en) 2018-04-11 2020-12-24 본지오비 어커스틱스 엘엘씨 Audio enhancement hearing protection system
US10959035B2 (en) 2018-08-02 2021-03-23 Bongiovi Acoustics Llc System, method, and apparatus for generating and digitally processing a head related audio transfer function
TWI748231B (en) * 2019-08-21 2021-12-01 崛智科技有限公司 Receiver circuit and operation method
CN111162809B (en) * 2019-12-13 2022-04-15 西安易朴通讯技术有限公司 Wireless receiver and wireless device

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US4598252A (en) * 1984-07-06 1986-07-01 Itt Corporation Variable gain power amplifier
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Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 061 (E - 387) 11 March 1986 (1986-03-11) *

Also Published As

Publication number Publication date
EP0762638A2 (en) 1997-03-12
CN1120578C (en) 2003-09-03
CN1153430A (en) 1997-07-02
KR100400970B1 (en) 2004-03-09
KR970013825A (en) 1997-03-29
CN100391109C (en) 2008-05-28
US5862461A (en) 1999-01-19
US6070063A (en) 2000-05-30
CN1389986A (en) 2003-01-08

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